检查 codeigniter 文件上传中允许的类型

Posted 2023-05-09

【中文标题】检查 codeigniter 文件上传中允许的类型

【英文标题】：check the allowed types in codeigniter file upload

【发布时间】：2021-01-01 18:33:21

【问题描述】：

我想在 codeigniter 中为我的文件创建多重上传。现在我在检查要上传的文件的允许类型时遇到了麻烦。在这里，我的控制器中有一个代码来检查数组中的文件是否是图像。

if(!empty($_FILES['requirement_files']['name'])) 
    $allowed_types = ['image/jpeg', 'image/jpg', 'image/png'];
    if(in_array($_FILES['requirement_files']['type'], $allowed_types)) 
        $input_name = "requirement_file";
        $upload_path = "../ci_capcims/assets/img/upload/requirements";
        $pref = "".date("YmdHis").".";
        $paths = multiple_upload($input_name, $upload_path, $pref);
        print_r($paths);
    else 
        $response['error'] = 'File type not allowed';
        $response['success']='false';
        header('Content-Type: application/json');   
    
else 
    $response['error'] = 'No File/s selected';
    $response['success']='false';
    header('Content-Type: application/json');

echo json_encode($response);

我正在选择一个 PNG 文件，但我被困在代码的if(in_array($_FILES['requirement_files']['type'], $allowed_types)) 行，它返回不允许的文件类型。

这是我的观点/形式：

<form method='post' name="frm_attachments" id="frm_attachments_id" enctype="multipart/form-data">
    <input type="hidden" name="req_id" id="pre_adopt_child_req_id">
    <div class="form-group files">
        <label>Upload Your File </label>
        <input type="file" class="form-control" name="requirement_files[]" id="file_input" multiple="" required>
    </div>

    <div class="form-group">
        <label for="first_name">Remarks</label>
        <textarea class="form-control" rows="4" id="remarks_id" name="remarks" placeholder="Please input remarks here..." style="resize:none;" required></textarea>
    </div>
    <button type="button" class="btn btn-primary" id="submit_attached_files">Save</button>
</form>

这是我的 javascript：

$(document).on('click', '#submit_attached_files', function(event) 
    event.preventDefault();
    $(":submit").attr("disabled", true);
        var fileInput = $('#file_input')[0];            
        if( fileInput.files.length > 0 )
            var formData = new FormData();
            $.each(fileInput.files, function(k,file)   
                formData.append('requirement_files[]', file);
            );

            var other_data = $('#frm_attachments_id').serializeArray();
            $.each(other_data,function(key,input)
                formData.append(input.name,input.value);
            );

            $.ajax(
                method: 'post',
                url: baseurl+'user/post/attach_file_in_req',
                data: formData,
                dataType: 'json',
                contentType: false,
                processData: false,
                success: function(response)
                    console.log(response);
                
            );
        else
            console.log('No Files Selected');
        
 
);

【参考方案1】：

$this->load->library('upload');
$config=array();
$config['upload_path'] = FCPATH.$save_dir;
$config['allowed_types'] = 'gif|jpg|png|csv';
$config['max_size'] = $this->config->item("max_file_size");
$config['overwrite'] = true;
$config['remove_spaces'] = true;
$uploaded_files=array();
$_FILES['image_profile']['name']=$CurrentUserID.'.jpg';
foreach ($_FILES as $key => $value)

  if(strlen($value['name'])>0)
                                    
     $this->upload->initialize($config);
     if (!$this->upload->do_upload($key))
     
        $uploaded_files[$key]=array("status"=>false,"message"=>$value['name'].': '.$this->upload->display_errors());
     
     else
     
        $uploaded_files[$key]=array("status"=>true,"info"=>$this->upload->data());
     
  

return $uploaded_files;

【讨论】：

您好，先生，谢谢您的回答。你能定义 FCPATH.$save_dir;

当您想要包含根文件夹中的内容时使用 FCPATH = C:\xampp\htdocs\your_root_folder\ 当您想要包含应用程序文件夹中的内容时使用 APPPATH = C:\xampp\htdocs\ your_root_folder\application\ BASEPATH = C:\xampp\htdocs\your_root_folder\system\